Advertising device.



No. `mismas. Patented Mar. 5, mol. w. E. FowLEn, .L owen L s. H. mETcALF. Anvemlsms nevlce.

(Application led Apr. 17, 1900.'y

(No Model.) 2 Sheets-Shao! 2.

UNITED STATES PATENT OFFICE.

WILLIAM E. EOWLER, JOHN OWEN, AND SIMON H. METCALE, OF SEATTLE,

WASHINGTON.

ADVERTISING DEVICE. v

SPECIFICATION forming part of Letters Patent No. 669,198, dated March 5, 1901.

Application led April 17, 1900. Serial No. 13,279. (No mcdel..\

To all whom t may concern.-

Be it known that we, WILLIAM E. FOWLER, Jol-1N OWEN, and SIMON H. MErcALE, citizens of the United States, residing at Seattle, in

the county of King and Stat-e of Washington,

have invented certain new and useful Improvements in Advertising Devices, of which the following is a specification, reference being had therein to the accompanying draw- Io ings.

Our invention relates to mechanism for imparting an intermittent rotary motion to a reel carrying on peripheral rods a number of advertising or display cards which by the I5 said movement are successively exhibited behind or within a sighteaperture provided in the containing-case; and its objects are to furnish a simple and reliable mechanism operated by electrical force automatically conzo trolled by suitable switches, to which ends it consists in the features more particularly hereinafter described and claimed. Mechanism by which we attain these ends and embodying our invention is illustrated in the z5 drawings accompanying and forming part of this specification, in which- Figure 1 is a vertical side view of the advertising device, the case being in section; Fig. 2, a like View of the operating mechan- 3o ism with moving parts in a changed position, and Fig. 3 a vertical front View with part of the case broken away.

Referring by letter, ol is the containingcase, having a sight-aperture in its front.

a is a reel rotatable upon spindle mounted in suitable bearings and having peripheral rods s between ends of reel to form pivots, on which are hinged the display-cards b c. The reel a has imparted to it the necessary inter- 4o mittent motion for the purpose of retaining the cards as they are displayed an appreciable time by means of pawl o, adapted to mesh with ratchet-teeth r, which are so formed as to be engaged for rotating the reel in but one direction. The pawl is given a reciprocating vertical motion bythe movement of swingarm m, pivotally secured at one end to support e, while the other end is connected to core g, which core is drawn by magnetic force into solenoidf, when circuit is complete for 5o the electric current to pass through the said coil. When the core has been raised to near the end of its stroke, a projecting pin h at its lowerextremity kicks up the switch k, when, the solenoid losing its magnetism, the core descends under the action of gravity until the said pin h strikes the end of trigger e', which raises the insulated rod j to throw the switch 7s into contact with pole Z to put the line into circuit andcause the core to be 6o again drawn upwardly by the magnetic force in the solenoid, thus completing a cycle of operation. To prevent the said moving partst. e., the core g and attached swing-arm mmoving by jerks or too rapidly when acted upon by either the forces of magnetism or gravity, we provide an air-cylinder 11 oscillating, preferably, on trunnion t. Wit-hin the said air-cylinder is an ordinary piston, (not shown in drawings,) having perforations, 7o preferably, therein to allow the passage of air therethrough from the chambers above and beneath said piston, thus forming a retarding or cushion device to control speed of changes.

p is a spring to keep pawl 0 to its work.

uu and 'U y are ends of wire, the latter, U y, being connected to the source of electric power on opposite sides thereof, while the wires u u may be connected together through 8o any suitable circuit connections.

Having described our invention, what we claim, and desire to secure byLetters Patent,

In an advertising device, the combination with the reel a, carrying display-cards, of a solenoid f, core g, having projecting pin h on extension thereof, trigger z', insulated rod j, switch 7c, and air-cushion chamber n, substantially as and for the purpose set forth. 9o

In testimony whereof we aiiX our signatures in presence of two witnesses.

WILLIAM E. FOWLER. J OI-IN OWEN. SIMON H. METCALF.

Witnesses:

PIERRE BARNES, F. D. MOSS. 

